1. Legal and representation costs
Costs scale with hearing length and disclosure volume. A one-day unfair dismissal hearing is at the cheap end; a multi-day discrimination claim with several witnesses, extensive disclosure and expert evidence is at the other.
Costs orders are rare in the employment tribunal, so each side normally bears its own legal costs even when it wins.
2. Internal time
Witness statements, disclosure, meetings with advisers and hearing attendance take managers and HR out of their jobs for days. This cost is real but rarely captured in a budget line, which is why tribunal spend is routinely underestimated.
3. Awards and settlements
Unfair dismissal compensation is capped by statute; discrimination awards are not, and can include injury to feelings. Many claims settle before hearing, which reduces exposure but still combines a payment with the legal costs already incurred.
4. The costs that never appear on an invoice
Team disruption while a claim runs. Sickness absence. Recruitment to replace people who leave during the process. Reputational effect if the judgment is published. None of these are recoverable.
5. Where the spend actually starts
Claims very rarely begin at the tribunal. They begin with a grievance that was not answered, a performance conversation with no written record, or a conflict between colleagues that nobody addressed until it hardened into a formal complaint.
Two things reduce cost more than anything else: resolving the issue early, and being able to show a dated, contemporaneous record of what was raised, what was tried and what was agreed.
Frequently asked questions
Do employees pay a fee to bring an employment tribunal claim?
No. Tribunal fees were quashed in 2017 and claimants in Great Britain do not currently pay to bring a claim.
Can an employer recover its costs if it wins?
Only exceptionally. Employment tribunals award costs in a small minority of cases, usually where a party has behaved unreasonably or a claim had no reasonable prospect of success.
Does early conciliation with Acas avoid the cost?
Acas early conciliation is free and mandatory before most claims, and it does resolve a meaningful proportion of disputes. It happens after the relationship has already broken down, though — resolving the issue internally, earlier, is cheaper still.
Does mediation guarantee we avoid a tribunal?
No. It reduces the likelihood by resolving issues before they formalise, and it leaves a record showing the employer acted — but no process can prevent a claim being brought.
This is general guidance on UK workplace practice, not legal advice. If a case is contested, high-risk, or involves discrimination, ill-health or long service, take advice from a solicitor or ACAS before acting.
Next step
GoMediation.ai gives UK employers a structured, impartial way to resolve grievances and performance issues early — and a dated, defensible record of everything that was tried.
Resolve issues before they escalate